As America’s new vehicle market posted a 4% sales decline in an abbreviated September 2013 and total passenger car sales slid 7%, sales of large cars at mainstream brands rose 5%.

Growth was powered in large part by the Dodge Charger, which hasn’t sold this well since 2008.

Toyota reported its tenth consecutive significant Avalon sales increase. The Hyundai Azera’s 67% jump equalled 596 extra units. In its sixth month, Kia sold 926 Cadenzas, down 35% from the average it had achieved over the prior three months.

Since ruling Americas roads in the heyday of the US auto industry, sales of large sedans (as a percentage of the overall market) have been in a decades-long slump. More recently, as SUVs have merged with large cars to form the modern crossover, the decline in large car sales has picked up speed. And there’s reason to expect that trend to continue, as a closer look at the data shows that market support for large sedans has eroded farther than even these numbers might suggest. One of TTAC’s well-placed sources reveals that the “large car” segment (admittedly, a notoriously difficult segment to accurately capture) is running at 50% fleet sales, year-to-date through October. That’s right, every second large sedan sold in this country end up as a fleet vehicle, many of them daily rentals.